package org.gitlab4j.api;

import java.util.Date;
import java.util.List;
import java.util.stream.Stream;

import jakarta.ws.rs.core.GenericType;
import jakarta.ws.rs.core.Response;

import org.gitlab4j.api.models.Note;
import org.gitlab4j.api.utils.ISO8601;

public class NotesApi extends AbstractApi {

    public NotesApi(GitLabApi gitLabApi) {
        super(gitLabApi);
    }

    /**
     * Get a list of the issues's notes.
     *
     * <pre><code>GitLab Endpoint: GET /projects/:id/issues/:issue_iid/notes</code></pre>
     *
     * @param projectIdOrPath the project in the form of an Long(ID), String(path), or Project instance
     * @param issueIid the issue ID to get the notes for
     * @return a list of the issues's notes
     * @throws GitLabApiException if any exception occurs
     */
    public List<Note> getIssueNotes(Object projectIdOrPath, Long issueIid) throws GitLabApiException {
        return (getIssueNotes(projectIdOrPath, issueIid, getDefaultPerPage()).all());
    }

    /**
     * Get a list of the issue's notes using the specified page and per page settings.
     *
     * <pre><code>GitLab Endpoint: GET /projects/:id/issues/:issue_iid/notes</code></pre>
     *
     * @param projectIdOrPath the project in the form of an Long(ID), String(path), or Project instance
     * @param issueIid the issue IID to get the notes for
     * @param page the page to get
     * @param perPage the number of notes per page
     * @return the list of notes in the specified range
     * @throws GitLabApiException if any exception occurs
     */
    public List<Note> getIssueNotes(Object projectIdOrPath, Long issueIid, int page, int perPage)
            throws GitLabApiException {
        Response response = get(
                Response.Status.OK,
                getPageQueryParams(page, perPage),
                "projects",
                getProjectIdOrPath(projectIdOrPath),
                "issues",
                issueIid,
                "notes");
        return (response.readEntity(new GenericType<List<Note>>() {}));
    }

    /**
     * Get a Pager of issues's notes.
     *
     * <pre><code>GitLab Endpoint: GET /projects/:id/issues/:issue_iid/notes</code></pre>
     *
     * @param projectIdOrPath the project in the form of an Long(ID), String(path), or Project instance
     * @param issueIid the issue IID to get the notes for
     * @param itemsPerPage the number of notes per page
     * @return the list of notes in the specified range
     * @throws GitLabApiException if any exception occurs
     */
    public Pager<Note> getIssueNotes(Object projectIdOrPath, Long issueIid, int itemsPerPage)
            throws GitLabApiException {
        return (new Pager<Note>(
                this,
                Note.class,
                itemsPerPage,
                null,
                "projects",
                getProjectIdOrPath(projectIdOrPath),
                "issues",
                issueIid,
                "notes"));
    }

    /**
     * Get a Stream of the issues's notes.
     *
     * <pre><code>GitLab Endpoint: GET /projects/:id/issues/:issue_iid/notes</code></pre>
     *
     * @param projectIdOrPath the project in the form of an Long(ID), String(path), or Project instance
     * @param issueIid the issue ID to get the notes for
     * @return a Stream of the issues's notes
     * @throws GitLabApiException if any exception occurs
     */
    public Stream<Note> getIssueNotesStream(Object projectIdOrPath, Long issueIid) throws GitLabApiException {
        return (getIssueNotes(projectIdOrPath, issueIid, getDefaultPerPage()).stream());
    }

    /**
     * Get the specified issues's note.
     *
     * <pre><code>GitLab Endpoint: GET /projects/:id/issues/:issue_iid/notes/:note_id</code></pre>
     *
     * @param projectIdOrPath the project in the form of an Long(ID), String(path), or Project instance
     * @param issueIid the issue IID to get the notes for
     * @param noteId the ID of the Note to get
     * @return a Note instance for the specified IDs
     * @throws GitLabApiException if any exception occurs
     */
    public Note getIssueNote(Object projectIdOrPath, Long issueIid, Long noteId) throws GitLabApiException {
        Response response = get(
                Response.Status.OK,
                getDefaultPerPageParam(),
                "projects",
                getProjectIdOrPath(projectIdOrPath),
                "issues",
                issueIid,
                "notes",
                noteId);
        return (response.readEntity(Note.class));
    }

    /**
     * Create a issues's note.
     *
     * <pre><code>GitLab Endpoint: POST /projects/:id/issues/:issue_iid/notes/:note_id</code></pre>
     *
     * @param projectIdOrPath the project in the form of an Long(ID), String(path), or Project instance @param projectIdOrPath the project ID to create the issues for
     * @param issueIid the issue IID to create the notes for
     * @param body the content of note
     * @return the created Note instance
     * @throws GitLabApiException if any exception occurs
     */
    public Note createIssueNote(Object projectIdOrPath, Long issueIid, String body) throws GitLabApiException {
        return (createIssueNote(projectIdOrPath, issueIid, body, null, null));
    }

    /**
     * Create a issues's note.
     *
     * <pre><code>GitLab Endpoint: POST /projects/:id/issues/:issue_iid/notes/:note_id</code></pre>
     *
     * @param projectIdOrPath the project in the form of an Long(ID), String(path), or Project instance
     * @param issueIid the issue IID to create the notes for
     * @param body the content of note
     * @param createdAt the created time of note
     * @return the created Note instance
     * @throws GitLabApiException if any exception occurs
     */
    public Note createIssueNote(Object projectIdOrPath, Long issueIid, String body, Date createdAt)
            throws GitLabApiException {
        return (createIssueNote(projectIdOrPath, issueIid, body, null, null));
    }

    /**
     * Create a issues's note.
     *
     * <pre><code>GitLab Endpoint: POST /projects/:id/issues/:issue_iid/notes/:note_id</code></pre>
     *
     * @param projectIdOrPath the project in the form of an Long(ID), String(path), or Project instance
     * @param issueIid the issue IID to create the notes for
     * @param body the content of note
     * @param createdAt the created time of note
     * @param internal whether the note shall be marked 'internal'
     * @return the created Note instance
     * @throws GitLabApiException if any exception occurs
     */
    public Note createIssueNote(Object projectIdOrPath, Long issueIid, String body, Date createdAt, Boolean internal)
            throws GitLabApiException {

        GitLabApiForm formData = new GitLabApiForm()
                .withParam("body", body, true)
                .withParam("created_at", createdAt)
                .withParam("internal", internal);
        ;
        Response response = post(
                Response.Status.CREATED,
                formData,
                "projects",
                getProjectIdOrPath(projectIdOrPath),
                "issues",
                issueIid,
                "notes");
        return (response.readEntity(Note.class));
    }

    /**
     * Update the specified issues's note.
     *
     * <pre><code>GitLab Endpoint: PUT /projects/:id/issues/:issue_iid/notes/:note_id</code></pre>
     *
     * @param projectIdOrPath the project in the form of an Long(ID), String(path), or Project instance
     * @param issueIid the issue IID to update the notes for
     * @param noteId the ID of the node to update
     * @param body the update content for the Note
     * @return the modified Note instance
     * @throws GitLabApiException if any exception occurs
     */
    public Note updateIssueNote(Object projectIdOrPath, Long issueIid, Long noteId, String body)
            throws GitLabApiException {

        GitLabApiForm formData = new GitLabApiForm().withParam("body", body, true);
        Response response = put(
                Response.Status.OK,
                formData.asMap(),
                "projects",
                getProjectIdOrPath(projectIdOrPath),
                "issues",
                issueIid,
                "notes",
                noteId);
        return (response.readEntity(Note.class));
    }

    /**
     * Delete the specified issues's note.
     *
     * <pre><code>GitLab Endpoint: DELETE /projects/:id/issues/:issue_iid/notes/:note_id</code></pre>
     *
     * @param projectIdOrPath the project in the form of an Long(ID), String(path), or Project instance
     * @param issueIid the issue IID to delete the notes for
     * @param noteId the ID of the node to delete
     * @throws GitLabApiException if any exception occurs
     */
    public void deleteIssueNote(Object projectIdOrPath, Long issueIid, Long noteId) throws GitLabApiException {

        if (issueIid == null) {
            throw new RuntimeException("issueIid cannot be null");
        }

        if (noteId == null) {
            throw new RuntimeException("noteId cannot be null");
        }

        Response.Status expectedStatus =
                (isApiVersion(GitLabApi.ApiVersion.V3) ? Response.Status.OK : Response.Status.NO_CONTENT);
        delete(
                expectedStatus,
                getDefaultPerPageParam(),
                "projects",
                getProjectIdOrPath(projectIdOrPath),
                "issues",
                issueIid,
                "notes",
                noteId);
    }

    /**
     * Gets a list of all notes for a single merge request
     *
     * <pre><code>GitLab Endpoint: GET /projects/:id/merge_requests/:merge_request_iid/notes</code></pre>
     *
     * @param projectIdOrPath the project in the form of an Long(ID), String(path), or Project instance
     * @param mergeRequestIid the issue ID to get the notes for
     * @return a list of the merge request's notes
     * @throws GitLabApiException if any exception occurs
     */
    public List<Note> getMergeRequestNotes(Object projectIdOrPath, Long mergeRequestIid) throws GitLabApiException {
        return (getMergeRequestNotes(projectIdOrPath, mergeRequestIid, null, null, getDefaultPerPage())
                .all());
    }

    /**
     * Gets a list of all notes for a single merge request.
     *
     * <pre><code>GitLab Endpoint: GET /projects/:id/merge_requests/:merge_request_iid/notes</code></pre>
     *
     * @param projectIdOrPath the project in the form of an Long(ID), String(path), or Project instance
     * @param mergeRequestIid the issue ID to get the notes for
     * @param sortOrder return merge request notes sorted in the specified sort order, default is DESC
     * @param orderBy return merge request notes ordered by CREATED_AT or UPDATED_AT, default is CREATED_AT
     * @return a list of the merge request's notes
     * @throws GitLabApiException if any exception occurs
     */
    public List<Note> getMergeRequestNotes(
            Object projectIdOrPath, Long mergeRequestIid, SortOrder sortOrder, Note.OrderBy orderBy)
            throws GitLabApiException {
        return (getMergeRequestNotes(projectIdOrPath, mergeRequestIid, sortOrder, orderBy, getDefaultPerPage())
                .all());
    }

    /**
     * Gets a list of all notes for a single merge request using the specified page and per page settings.
     *
     * <pre><code>GitLab Endpoint: GET /projects/:id/merge_requests/:merge_request_iid/notes</code></pre>
     *
     * @param projectIdOrPath the project in the form of an Long(ID), String(path), or Project instance
     * @param mergeRequestIid the merge request IID to get the notes for
     * @param page the page to get
     * @param perPage the number of notes per page
     * @return the list of notes in the specified range
     * @throws GitLabApiException if any exception occurs
     */
    public List<Note> getMergeRequestNotes(Object projectIdOrPath, Long mergeRequestIid, int page, int perPage)
            throws GitLabApiException {
        return (getMergeRequestNotes(projectIdOrPath, mergeRequestIid, null, null, page, perPage));
    }

    /**
     * Gets a list of all notes for a single merge request using the specified page and per page settings.
     *
     * <pre><code>GitLab Endpoint: GET /projects/:id/merge_requests/:merge_request_iid/notes</code></pre>
     *
     * @param projectIdOrPath the project in the form of an Long(ID), String(path), or Project instance
     * @param mergeRequestIid the merge request IID to get the notes for
     * @param sortOrder return merge request notes sorted in the specified sort order, default is DESC
     * @param orderBy return merge request notes ordered by CREATED_AT or UPDATED_AT, default is CREATED_AT
     * @param page the page to get
     * @param perPage the number of notes per page
     * @return the list of notes in the specified range
     * @throws GitLabApiException if any exception occurs
     */
    public List<Note> getMergeRequestNotes(
            Object projectIdOrPath,
            Long mergeRequestIid,
            SortOrder sortOrder,
            Note.OrderBy orderBy,
            int page,
            int perPage)
            throws GitLabApiException {

        GitLabApiForm formData = new GitLabApiForm()
                .withParam("sort", sortOrder)
                .withParam("order_by", orderBy)
                .withParam(PAGE_PARAM, page)
                .withParam(PER_PAGE_PARAM, perPage);
        Response response = get(
                Response.Status.OK,
                formData.asMap(),
                "projects",
                getProjectIdOrPath(projectIdOrPath),
                "merge_requests",
                mergeRequestIid,
                "notes");
        return (response.readEntity(new GenericType<List<Note>>() {}));
    }

    /**
     * Get a Pager of all notes for a single merge request
     *
     * <pre><code>GitLab Endpoint: GET /projects/:id/merge_requests/:merge_request_iid/notes</code></pre>
     *
     * @param projectIdOrPath the project in the form of an Long(ID), String(path), or Project instance
     * @param mergeRequestIid the merge request IID to get the notes for
     * @param itemsPerPage the number of notes per page
     * @return the list of notes in the specified range
     * @throws GitLabApiException if any exception occurs
     */
    public Pager<Note> getMergeRequestNotes(Object projectIdOrPath, Long mergeRequestIid, int itemsPerPage)
            throws GitLabApiException {
        return (getMergeRequestNotes(projectIdOrPath, mergeRequestIid, null, null, itemsPerPage));
    }

    /**
     * Gets a Stream of all notes for a single merge request
     *
     * <pre><code>GitLab Endpoint: GET /projects/:id/merge_requests/:merge_request_iid/notes</code></pre>
     *
     * @param projectIdOrPath the project in the form of an Long(ID), String(path), or Project instance
     * @param mergeRequestIid the issue ID to get the notes for
     * @return a Stream of the merge request's notes
     * @throws GitLabApiException if any exception occurs
     */
    public Stream<Note> getMergeRequestNotesStream(Object projectIdOrPath, Long mergeRequestIid)
            throws GitLabApiException {
        return (getMergeRequestNotes(projectIdOrPath, mergeRequestIid, null, null, getDefaultPerPage()).stream());
    }

    /**
     * Get a Pager of all notes for a single merge request
     *
     * <pre><code>GitLab Endpoint: GET /projects/:id/merge_requests/:merge_request_iid/notes</code></pre>
     *
     * @param projectIdOrPath the project in the form of an Long(ID), String(path), or Project instance
     * @param mergeRequestIid the merge request IID to get the notes for
     * @param sortOrder return merge request notes sorted in the specified sort order, default is DESC
     * @param orderBy return merge request notes ordered by CREATED_AT or UPDATED_AT, default is CREATED_AT
     * @param itemsPerPage the number of notes per page
     * @return the list of notes in the specified range
     * @throws GitLabApiException if any exception occurs
     */
    public Pager<Note> getMergeRequestNotes(
            Object projectIdOrPath, Long mergeRequestIid, SortOrder sortOrder, Note.OrderBy orderBy, int itemsPerPage)
            throws GitLabApiException {

        GitLabApiForm formData = new GitLabApiForm()
                .withParam("sort", sortOrder)
                .withParam("order_by", orderBy)
                .withParam(PAGE_PARAM, 1)
                .withParam(PER_PAGE_PARAM, itemsPerPage);
        return (new Pager<Note>(
                this,
                Note.class,
                itemsPerPage,
                formData.asMap(),
                "projects",
                getProjectIdOrPath(projectIdOrPath),
                "merge_requests",
                mergeRequestIid,
                "notes"));
    }

    /**
     * Gets a Stream of all notes for a single merge request.
     *
     * <pre><code>GitLab Endpoint: GET /projects/:id/merge_requests/:merge_request_iid/notes</code></pre>
     *
     * @param projectIdOrPath the project in the form of an Long(ID), String(path), or Project instance
     * @param mergeRequestIid the issue ID to get the notes for
     * @param sortOrder return merge request notes sorted in the specified sort order, default is DESC
     * @param orderBy return merge request notes ordered by CREATED_AT or UPDATED_AT, default is CREATED_AT
     * @return a Stream of the merge request's notes
     * @throws GitLabApiException if any exception occurs
     */
    public Stream<Note> getMergeRequestNotesStream(
            Object projectIdOrPath, Long mergeRequestIid, SortOrder sortOrder, Note.OrderBy orderBy)
            throws GitLabApiException {
        return (getMergeRequestNotes(projectIdOrPath, mergeRequestIid, sortOrder, orderBy, getDefaultPerPage())
                .stream());
    }

    /**
     * Get the specified merge request's note.
     *
     * <pre><code>GitLab Endpoint: GET /projects/:id/merge_requests/:merge_request_iid/notes/:note_id</code></pre>
     *
     * @param projectIdOrPath the project in the form of an Long(ID), String(path), or Project instance
     * @param mergeRequestIid  the merge request IID to get the notes for
     * @param noteId the ID of the Note to get
     * @return a Note instance for the specified IDs
     * @throws GitLabApiException if any exception occurs
     */
    public Note getMergeRequestNote(Object projectIdOrPath, Long mergeRequestIid, Long noteId)
            throws GitLabApiException {
        Response response = get(
                Response.Status.OK,
                getDefaultPerPageParam(),
                "projects",
                getProjectIdOrPath(projectIdOrPath),
                "merge_requests",
                mergeRequestIid,
                "notes",
                noteId);
        return (response.readEntity(Note.class));
    }

    /**
     * Create a merge request's note.
     *
     * <pre><code>GitLab Endpoint: POST /projects/:id/merge_requests/:merge_request_iid/notes/:note_id</code></pre>
     *
     * @param projectIdOrPath the project in the form of an Long(ID), String(path), or Project instance
     * @param mergeRequestIid  the merge request IID to create the notes for
     * @param body the content of note
     * @param createdAt date the discussion was created (requires admin or project/group owner rights) (Optional)
     * @return the created Note instance
     * @throws GitLabApiException if any exception occurs
     */
    public Note createMergeRequestNote(
            Object projectIdOrPath, Long mergeRequestIid, String body, Date createdAt, Boolean internal)
            throws GitLabApiException {
        GitLabApiForm formData =
                new GitLabApiForm().withParam("body", body, true).withParam("internal", internal);
        if (createdAt != null) {
            formData.withParam("created_at", ISO8601.toString(createdAt));
        }
        Response response = post(
                Response.Status.CREATED,
                formData,
                "projects",
                getProjectIdOrPath(projectIdOrPath),
                "merge_requests",
                mergeRequestIid,
                "notes");
        return (response.readEntity(Note.class));
    }

    /**
     * Update the specified merge request's note.
     *
     * <pre><code>GitLab Endpoint: PUT /projects/:id/merge_requests/:merge_request_iid/notes/:note_id</code></pre>
     *
     * @param projectIdOrPath the project in the form of an Long(ID), String(path), or Project instance
     * @param mergeRequestIid  the merge request IID to update the notes for
     * @param noteId the ID of the node to update
     * @param body the update content for the Note
     * @return the modified Note instance
     * @throws GitLabApiException if any exception occurs
     */
    public Note updateMergeRequestNote(Object projectIdOrPath, Long mergeRequestIid, Long noteId, String body)
            throws GitLabApiException {

        GitLabApiForm formData = new GitLabApiForm().withParam("body", body, true);
        Response response = put(
                Response.Status.OK,
                formData.asMap(),
                "projects",
                getProjectIdOrPath(projectIdOrPath),
                "merge_requests",
                mergeRequestIid,
                "notes",
                noteId);
        return (response.readEntity(Note.class));
    }

    /**
     * Delete the specified merge request's note.
     *
     * <pre><code>GitLab Endpoint: DELETE /projects/:id/merge_requests/:merge_request_iid/notes/:note_id</code></pre>
     *
     * @param projectIdOrPath the project in the form of an Long(ID), String(path), or Project instance
     * @param mergeRequestIid the merge request IID to delete the notes for
     * @param noteId the ID of the node to delete
     * @throws GitLabApiException if any exception occurs
     */
    public void deleteMergeRequestNote(Object projectIdOrPath, Long mergeRequestIid, Long noteId)
            throws GitLabApiException {

        if (mergeRequestIid == null) {
            throw new RuntimeException("mergeRequestIid cannot be null");
        }

        if (noteId == null) {
            throw new RuntimeException("noteId cannot be null");
        }

        Response.Status expectedStatus =
                (isApiVersion(GitLabApi.ApiVersion.V3) ? Response.Status.OK : Response.Status.NO_CONTENT);
        delete(
                expectedStatus,
                null,
                "projects",
                getProjectIdOrPath(projectIdOrPath),
                "merge_requests",
                mergeRequestIid,
                "notes",
                noteId);
    }

    /**
     * Get a list of the epics's notes.
     *
     * <pre><code>GitLab Endpoint: GET /groups/:id/epics/:epic_id/notes</code></pre>
     *
     * @param groupIdOrPath the group in the form of an Long(ID), String(path), or Group instance
     * @param epicId the epic ID (not the IID!) to get the notes for
     * @return a list of the epics's notes
     * @throws GitLabApiException if any exception occurs
     */
    public List<Note> getEpicNotes(Object groupIdOrPath, Long epicId) throws GitLabApiException {
        return (getEpicNotes(groupIdOrPath, epicId, getDefaultPerPage()).all());
    }

    /**
     * Get a list of the epic's notes using the specified page and per page settings.
     *
     * <pre><code>GitLab Endpoint: GET /groups/:id/epics/:epic_id/notes</code></pre>
     *
     * @param groupIdOrPath the group in the form of an Long(ID), String(path), or Group instance
     * @param epicId the epic ID (not the IID!) to get the notes for
     * @param page the page to get
     * @param perPage the number of notes per page
     * @return the list of notes in the specified range
     * @throws GitLabApiException if any exception occurs
     */
    public List<Note> getEpicNotes(Object groupIdOrPath, Long epicId, int page, int perPage) throws GitLabApiException {
        Response response = get(
                Response.Status.OK,
                getPageQueryParams(page, perPage),
                "groups",
                getGroupIdOrPath(groupIdOrPath),
                "epics",
                epicId,
                "notes");
        return (response.readEntity(new GenericType<List<Note>>() {}));
    }

    /**
     * Get a Pager of epics's notes.
     *
     * <pre><code>GitLab Endpoint: GET /groups/:id/epics/:epic_id/notes</code></pre>
     *
     * @param groupIdOrPath the group in the form of an Long(ID), String(path), or Group instance
     * @param epicId the epic ID (not the IID!) to get the notes for
     * @param itemsPerPage the number of notes per page
     * @return the list of notes in the specified range
     * @throws GitLabApiException if any exception occurs
     */
    public Pager<Note> getEpicNotes(Object groupIdOrPath, Long epicId, int itemsPerPage) throws GitLabApiException {
        return (new Pager<Note>(
                this,
                Note.class,
                itemsPerPage,
                null,
                "groups",
                getGroupIdOrPath(groupIdOrPath),
                "epics",
                epicId,
                "notes"));
    }

    /**
     * Get a Stream of the epics's notes.
     *
     * <pre><code>GitLab Endpoint: GET /groups/:id/epics/:epic_id/notes</code></pre>
     *
     * @param groupIdOrPath the group in the form of an Long(ID), String(path), or Group instance
     * @param epicId the epic ID (not the IID!) to get the notes for
     * @return a Stream of the epics's notes
     * @throws GitLabApiException if any exception occurs
     */
    public Stream<Note> getEpicNotesStream(Object groupIdOrPath, Long epicId) throws GitLabApiException {
        return (getEpicNotes(groupIdOrPath, epicId, getDefaultPerPage()).stream());
    }

    /**
     * Get the specified epics's note.
     *
     * <pre><code>GitLab Endpoint: GET /groups/:id/epics/:epic_id/notes/:note_id</code></pre>
     *
     * @param groupIdOrPath the group in the form of an Long(ID), String(path), or Group instance
     * @param epicId the epic ID (not the IID!) to get the notes for
     * @param noteId the ID of the Note to get
     * @return a Note instance for the specified IDs
     * @throws GitLabApiException if any exception occurs
     */
    public Note getEpicNote(Object groupIdOrPath, Long epicId, Long noteId) throws GitLabApiException {
        Response response = get(
                Response.Status.OK,
                getDefaultPerPageParam(),
                "groups",
                getGroupIdOrPath(groupIdOrPath),
                "epics",
                epicId,
                "notes",
                noteId);
        return (response.readEntity(Note.class));
    }

    /**
     * Create a epics's note.
     *
     * <pre><code>GitLab Endpoint: POST /groups/:id/epics/:epic_id/notes/:note_id</code></pre>
     *
     * @param groupIdOrPath the group in the form of an Long(ID), String(path), or Group instance @param groupIdOrPath the group ID to create the epics for
     * @param epicId the epic ID (not the IID!) to create the notes for
     * @param body the content of note
     * @return the created Note instance
     * @throws GitLabApiException if any exception occurs
     */
    public Note createEpicNote(Object groupIdOrPath, Long epicId, String body) throws GitLabApiException {
        return (createEpicNote(groupIdOrPath, epicId, body, null, null));
    }

    /**
     * Create a epics's note.
     *
     * <pre><code>GitLab Endpoint: POST /groups/:id/epics/:epic_id/notes/:note_id</code></pre>
     *
     * @param groupIdOrPath the group in the form of an Long(ID), String(path), or Group instance
     * @param epicId the epic ID (not the IID!) to create the notes for
     * @param body the content of note
     * @param createdAt the created time of note
     * @return the created Note instance
     * @throws GitLabApiException if any exception occurs
     */
    public Note createEpicNote(Object groupIdOrPath, Long epicId, String body, Date createdAt)
            throws GitLabApiException {
        return (createEpicNote(groupIdOrPath, epicId, body, null, null));
    }

    /**
     * Create a epics's note.
     *
     * <pre><code>GitLab Endpoint: POST /groups/:id/epics/:epic_id/notes/:note_id</code></pre>
     *
     * @param groupIdOrPath the group in the form of an Long(ID), String(path), or Group instance
     * @param epicId the epic ID (not the IID!) to create the notes for
     * @param body the content of note
     * @param createdAt the created time of note
     * @param internal whether the note shall be marked 'internal'
     * @return the created Note instance
     * @throws GitLabApiException if any exception occurs
     */
    public Note createEpicNote(Object groupIdOrPath, Long epicId, String body, Date createdAt, Boolean internal)
            throws GitLabApiException {

        GitLabApiForm formData = new GitLabApiForm()
                .withParam("body", body, true)
                .withParam("created_at", createdAt)
                .withParam("internal", internal);
        ;
        Response response = post(
                Response.Status.CREATED, formData, "groups", getGroupIdOrPath(groupIdOrPath), "epics", epicId, "notes");
        return (response.readEntity(Note.class));
    }

    /**
     * Update the specified epics's note.
     *
     * <pre><code>GitLab Endpoint: PUT /groups/:id/epics/:epic_id/notes/:note_id</code></pre>
     *
     * @param groupIdOrPath the group in the form of an Long(ID), String(path), or Group instance
     * @param epicId the epic ID (not the IID!) to update the notes for
     * @param noteId the ID of the node to update
     * @param body the update content for the Note
     * @return the modified Note instance
     * @throws GitLabApiException if any exception occurs
     */
    public Note updateEpicNote(Object groupIdOrPath, Long epicId, Long noteId, String body) throws GitLabApiException {

        GitLabApiForm formData = new GitLabApiForm().withParam("body", body, true);
        Response response = put(
                Response.Status.OK,
                formData.asMap(),
                "groups",
                getGroupIdOrPath(groupIdOrPath),
                "epics",
                epicId,
                "notes",
                noteId);
        return (response.readEntity(Note.class));
    }

    /**
     * Delete the specified epics's note.
     *
     * <pre><code>GitLab Endpoint: DELETE /groups/:id/epics/:epic_id/notes/:note_id</code></pre>
     *
     * @param groupIdOrPath the group in the form of an Long(ID), String(path), or Group instance
     * @param epicId the epic ID (not the IID!) to delete the notes for
     * @param noteId the ID of the node to delete
     * @throws GitLabApiException if any exception occurs
     */
    public void deleteEpicNote(Object groupIdOrPath, Long epicId, Long noteId) throws GitLabApiException {

        if (epicId == null) {
            throw new RuntimeException("epicId cannot be null");
        }

        if (noteId == null) {
            throw new RuntimeException("noteId cannot be null");
        }

        delete(
                Response.Status.NO_CONTENT,
                getDefaultPerPageParam(),
                "groups",
                getGroupIdOrPath(groupIdOrPath),
                "epics",
                epicId,
                "notes",
                noteId);
    }
}
